Has anyone else noticed that mpi_leave_pinned 1 with the openib BTL (and potentially others) isn't working in 1.7rc6 and the trunk head? On the same system and within the same allocation everything seems to be working fine with 1.6.3, for example. When I try it with the latest 1.7 rc and the trunk head I get an error stating that "no memory registration hooks were found."